English verb conjugation
CAN FLAIL

Regular verb: flail - flailed - flailed

Affirmation

Simple form	V-ing form
I can flail you can flail she can flail we can flail you can flail they can flail	I can be flailing you can be flailing she can be flailing we can be flailing you can be flailing they can be flailing
Perfect	V-ing perfect
I can have flailed you can have flailed she can have flailed we can have flailed you can have flailed they can have flailed	I can have been flailing you can have been flailing she can have been flailing we can have been flailing you can have been flailing they can have been flailing

Negation

Simple form	V-ing form
I cannot flail you cannot flail she cannot flail we cannot flail you cannot flail they cannot flail	I cannot be flailing you cannot be flailing she cannot be flailing we cannot be flailing you cannot be flailing they cannot be flailing
Perfect	V-ing perfect
I cannot have flailed you cannot have flailed she cannot have flailed we cannot have flailed you cannot have flailed they cannot have flailed	I cannot have been flailing you cannot have been flailing she cannot have been flailing we cannot have been flailing you cannot have been flailing they cannot have been flailing

Interrogative form

Simple form	V-ing form
can I flail? can you flail? can she flail? can we flail? can you flail? can they flail?	can I be flailing? can you be flailing? can she be flailing? can we be flailing? can you be flailing? can they be flailing?
Perfect	V-ing perfect
can I have flailed? can you have flailed? can she have flailed? can we have flailed? can you have flailed? can they have flailed?	can I have been flailing? can you have been flailing? can she have been flailing? can we have been flailing? can you have been flailing? can they have been flailing?

Interro-negative form

Simple form	V-ing form
can I not flail? can you not flail? can she not flail? can we not flail? can you not flail? can they not flail?	can I not be flailing? can you not be flailing? can she not be flailing? can we not be flailing? can you not be flailing? can they not be flailing?
Perfect	V-ing perfect
can I not have flailed? can you not have flailed? can she not have flailed? can we not have flailed? can you not have flailed? can they not have flailed?	can I not have been flailing? can you not have been flailing? can she not have been flailing? can we not have been flailing? can you not have been flailing? can they not have been flailing?